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| Study on the Errors and Countermeasures of Grain Analysis Test |
| CAO Xiao-juan |
| The Third Railway Survey and Design Institute Group Corporation, Tianjin 300251, China |
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Abstract Research purposes: Being an important part of the soil test, the grain analysis test is a test to analyze the gradation of the soil grain size. This paper introduces the composition of soil grain and its testing methods, analyzes the causes of the testing errors and their consequences by focusing on the items and operating points during the grain analysis test. It is hoped to find proper solutions for the test to reduce or lower the errors, thus to make the test results be more similar to the true state of the soil.
Research conclusions: After analyzing causes of errors in the test, attention should be paid to the following points during the test :(1)A proper test method should be chosen aiming at the condition of soil samples; (2) Periodic metrological verification should be done for all the instruments and apparatus;(3)Test operators should be trained for updating of specifications and equipment，and they should operate strictly according to test specifications so as to minimize errors; (4) Precautions of grain analysis test proposed in this article have certain reference significance for reducing errors in grain analysis of soil tests.
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Received: 05 September 2013
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[1] TB 10102-2010, 铁路工程土工试验规程 [S].
TB 10102-2010, Code for Soil Test of Railway Engineering [S].
[2] 铁建设[2010]241号, 高速铁路路基工程施工技术指南[S].
Railway Engineering[2010]241, Technical Guide for Construction of High-speed Railway Earth Structure Engineering [S].
[3] SL 237-1999, 土工试验规程[S].
SL 237-1999, Specification of Soil Test [S].
[4] GB/T 50123-1999, 土工试验方法标准[S].
GB/T 50123-1999, Standard for Soil Test Method [S].
[5] 王卉. 颗粒分析试验误差产生的原因[J]. 资源环境与工程, 2011(5):21-23.
Wang Hui. The Causes of the Error in Grain Size Analysis Experiment, Resources Environment & Engineering, 2011(5):21-23.
[6] 李瑜霞. 颗粒分析试验研究[J]. 岩土工程技术, 2010(4):35-38.
Li Yuxia. Experimental Study of Gradation Test[J]. Geotechnical Engineering Technique, 2010(4):35-38.
[7] 吴全美. 颗粒分析试验密度计法的探讨[J]. 城市建设理论研究, 2013(7):11-13.
Wu Quanmei. Study of Densimeter Method in Grain Analysis Test [J]. Theory Study of City Development,2013(7):11-13.
[8] 易南概, 等. 颗粒分析试验中密度计法改进的探讨[J]. 山西建筑, 2001(1):26-27.
Yi Nangai, etc. Study of the Improvement of Densimeter Method in Grain Analysis Test [J]. Shanxi Architecture, 2001(1):26-27.
[9] 任丽元, 等. 粘土中胶粒对密度计法颗粒分析试验的影响的探讨[J]. 山东水利, 2008(10):7-10.
Ren Liyuan, etc. Study of the Impact of Particle in Clayey soil on Densimeter Method in Grain Analysis Test [J]. Shandong Water Resources, 2008(10):7-10.
[10] 肖吉敏, 等. 铁路工程岩土化学分析规程执行中应注意的问题[J]. 铁道工程学报, 2009(8):37-40.
Xiao Jimin, etc. The Issues for Caution on Implement of Code for Rock and Soil Chemical Analyses for Railway Engineering[J]. Journal of Railway Engineering Society, 2009 (8):37-40.
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2014, Vol. 31 
